slfan1989 commented on code in PR #4903:
URL: https://github.com/apache/hadoop/pull/4903#discussion_r973714519
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hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetAsyncDiskService.java:
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@@ -359,6 +371,89 @@ public void run() {
IOUtils.cleanupWithLogger(null, this.volumeRef);
}
}
+
+ private boolean removeReplicaFromMem() {
+ try (AutoCloseableLock lock =
fsdatasetImpl.acquireDatasetLockManager().writeLock(
+ DataNodeLockManager.LockLevel.BLOCK_POOl, block.getBlockPoolId())) {
+ final ReplicaInfo info = fsdatasetImpl.volumeMap
+ .get(block.getBlockPoolId(), block.getLocalBlock());
+ if (info == null) {
+ ReplicaInfo infoByBlockId =
+ fsdatasetImpl.volumeMap.get(block.getBlockPoolId(),
+ block.getLocalBlock().getBlockId());
+ if (infoByBlockId == null) {
+ // It is okay if the block is not found -- it
+ // may be deleted earlier.
+ LOG.info("Failed to delete replica " + block.getLocalBlock()
+ + ": ReplicaInfo not found in removeReplicaFromMem.");
+ } else {
+ LOG.error("Failed to delete replica " + block.getLocalBlock()
+ + ": GenerationStamp not matched, existing replica is "
+ + Block.toString(infoByBlockId) + " in removeReplicaFromMem.");
+ }
+ return false;
+ }
+
+ FsVolumeImpl v = (FsVolumeImpl)info.getVolume();
+ if (v == null) {
+ LOG.error("Failed to delete replica " + block.getLocalBlock()
+ + ". No volume for this replica " + info + " in
removeReplicaFromMem.");
Review Comment:
Should we use {}
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